Basic information
Sample name: Koléa

Reference: A. Guendouz-Benrima, B. Doumandji Mitiche, and D. Petit. 2011. Effects of weak climatic variations on assemblages and life cycles of Orthoptera in North Algeria. Journal of Arid Environments 75:416-423 [ER 2152]
Country: Algeria
State: West Algiers

Coordinate: 36° 38' N, 2° 46' E
Basis of coordinate: based on nearby landmark
Geography comments: "on waste lands in the plain of Mitidja (North of Algeria)... only 4 km from the sea, established on a plane area on the southern slope of the Sahel" (coordinate based on Koléa)
Climate and habitat
Habitat: desert/xeric shrubland
Altered habitat: cropland
Substrate: ground surface
WMT: 26.8
CMT: 10.1
MAP: 486.0
Habitat comments: "Mediterranean at the limit of sub-humid and semi-arid stages with a mild winter"; the "waste land resulted from the natural plant dynamics over 4-5 years following a crop composed of a mixture of Vicia sp. and Avena sativa"
Life forms: orthopterans
Sampling methods: quadrat, sweep nets, hand capture
Sample size: 1398
Years: 1991, 1992
Sampling comments: "a monthly sampling of insects was undertaken... we delimited at random, open quadrates of 3 m 3 m (9 m2), separated from each other by a distance of at least 10 m... samplings were carried out very early in the morning... This operation was repeated five times in each station using a sweeping net to collect almost all insect individuals by quadrat... individuals were released elsewhere in the vicinity after counting, so as to avoid counting them twice... some individuals were put in plastic bags... for a later determination"
Sample: 2146
Contributor: John Alroy
Enterer: John Alroy
Created: 2016-07-25 20:18:55
Modified: 2016-07-25 20:18:55
Abundance distribution
28 species
0 singletons
total count 1398
standardised richness: 28.0
Fisher's α: 4.960
geometric series k: 0.8383
Hurlbert's PIE: 0.9246
Shannon's H: 2.8776
Good's u: 1.0000